Composite titanium dioxide photocatalyst sol coating material component and coating method thereof

A technology of titanium dioxide and oxide sol, which is applied in the direction of surface coating liquid devices, coatings, special surfaces, etc., can solve the problems of inability to express hydrophilicity, achieve superior hydrophilicity, good cleaning effect, reduce water The effect of dosage

Inactive Publication Date: 2012-09-05
GREENCOAT TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0015] Titanium dioxide photocatalyst itself needs sufficient light irradiation to achieve good hydrophilicity in order to exert effective self-cleaning function, but in many cases, sufficient light cannot be achieved, without sufficient light, titanium dioxide photocatalyst will not perform well Therefore, how to improve the good hydrophilicity of the photocatalyst under no light irradiation or insufficient light irradiation is the key point of the present invention

Method used

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  • Composite titanium dioxide photocatalyst sol coating material component and coating method thereof
  • Composite titanium dioxide photocatalyst sol coating material component and coating method thereof
  • Composite titanium dioxide photocatalyst sol coating material component and coating method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] see figure 1 , the base material 10 that adopts is glass, adopts spraying method, prepares composite titanium dioxide photocatalyst coating, wherein contains the titanium dioxide photocatalyst sol concentration to be 30 grams / liter, the porous silicon oxide sol concentration 20 grams / liter containing the hydroxyl group, uniform coating On the surface of the glass substrate, a composite titanium dioxide photocatalyst coating 20 is formed on the surface of the substrate 10, and its specific processing technology is:

[0044] 1. Clean the glass surface, apply the composite titanium dioxide photocatalyst coating evenly on the glass surface by spraying method, and after the coating is naturally air-dried, a layer of composite titanium dioxide photocatalyst coating 11 is formed on the glass surface;

[0045] 2. Comparing the hydrophilicity of the uncoated glass and the glass surface coated with the composite titanium dioxide photocatalyst coating, the water contact angle of t...

Embodiment 2

[0048] With embodiment 1, composite titanium dioxide photocatalyst paint composition is to contain titanium dioxide photocatalyst sol concentration and be 40 grams / liter, the porous tungsten oxide sol concentration that contains hydroxyl is 50 grams / liter, coating processing mode is with roll coating method, basic Material 10 is a ceramic tile, which is fired in a heating furnace at 900°C to form a coating. The specific processing technology is as follows:

[0049] 1. Clean the surface of the tiles, apply the composite titanium dioxide photocatalyst coating evenly on the surface of the tiles by roller coating, after the coating is naturally air-dried, place the tiles in a heating furnace at 900°C for 3 minutes, and cool down to room temperature naturally, that is Form a composite titanium dioxide photocatalyst coating 11 on the ceramic tile surface;

[0050] 2. Comparing the hydrophilicity of the tile surface without coating and the tile surface coated with composite titanium ...

Embodiment 3

[0053] With embodiment 1, composite titanium dioxide photocatalyst paint composition is to contain titanium dioxide photocatalyst sol concentration and be 50 grams / liter, the porous tungsten oxide sol concentration that contains hydroxyl is 70 grams / liter, coating processing mode is with brushing method, basic The material is smooth stone, and the stone is dried in hot air at 100°C to form a coating. The specific processing technology is as follows:

[0054] 1. Clean the surface of the stone, and apply the composite titanium dioxide photocatalyst coating evenly on the surface of the stone by brushing. After the coating is naturally air-dried, place the stone in hot air at 100°C to cure for 30 minutes, and cool down to room temperature naturally. A composite titanium dioxide photocatalyst coating 11 is formed on the surface of the stone;

[0055] 2. Comparing the hydrophilicity of the uncoated stone and the surface of the stone coated with the composite titanium dioxide photoca...

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Abstract

The invention discloses a composite titanium dioxide photocatalyst sol coating material component which is good in water-wet behavior in case of no light lay irritation or insufficient light lay irritation and a coating method of the composite titanium dioxide photocatalyst sol coating material component, aiming at improving the water-wet behavior of the titanium dioxide photocatalyst in case of no light lay irritation or insufficient light lay irritation, wherein the coating material which is formed by proportioning titanium dioxide photocatalyst sol and hydroxyl-containing porous metal oxide sol in proper proportion is coated on the surface of a base material, and a layer of functional coating layer is formed on the surface of the base material after the coating layer is dried at normal temperature and solidified in a heating way. Under the condition of sufficient light lay irritation, the coating layer has the chemical decomposition or degradation characteristic of the titanium dioxide photocatalyst, can decompose or degrade the organic pollutant adhered to the surface face of the base material, and further has the physical hydrophilic soil release. The coating layer is good in the water-wet behavior in case of no light lay irritation or insufficient light lay irritation, so that the dirt on the surface can be easily washed to be removed by the means that the base material is washed by water, therefore, the cleanness of the base material can be kept.

Description

technical field [0001] The invention relates to a composite titanium dioxide photocatalyst sol coating composition and a coating method thereof, especially to a composite titanium dioxide photocatalyst coating that cooperates with an appropriate coating technique to form a coating on the surface of a substrate. Under sufficient irradiation, it has good hydrophilic properties and achieves the purpose of easy cleaning and anti-dirty. Background technique [0002] The existing titanium dioxide photocatalyst has photocatalytic effect under sunlight irradiation. The principle is to directly decompose the organic pollutant molecules such as oil stains attached to the surface by the photocatalytic reaction produced by ultraviolet irradiation on the titanium dioxide photocatalyst; Weakened, and easy to be taken away by rain or washed away by water; in addition, the surface of the substrate coated with titanium dioxide photocatalyst film will have good hydrophilic properties after b...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D1/00B05D5/08B05D3/00
Inventor 刘文泉黄建国陈郁文
Owner GREENCOAT TECH
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